Posted by Viperfang into Ramblings at 21:00 on Saturday the 4th of October 2008

With the idea of finding some boot roms, for some NIC’s that lack them, Ive been raiding a box of old computer equipment. As I didn’t have that much time I grabbed every chip that was in a socket, below is what I found!

Type

Manufacturer

Model

Qty

Notes

eprom

ISSI

is27hc01045

2

128K (1 megabit)

eprom

STMicroelectronics

m27c256b

3

256K (2 megabit)

eprom

National Semiconductor

nmc27c256q25

1

256K (2 megabit)

eprom

Macronix International

27c256-15

2

256K (2 megabit)

eprom

Advanced Micro Devices

am27c512-150dc

1

512K (4 megabit)

eprom

STMicroelectronics

m27c512-15f1

1

512K (4 megabit)

eprom

NXP Semiconductors

27c256-20fa

1

256K (2 megabit)

FM OPERATOR TYPE L 2

Yamaha

ym3812

1

–

Single-chip Floppy Disk Controller

UMC Corporation

um8388

1

–

Programmable Peripheral Interface

NEC

upd8255ac-2

1

–

Many-Time Programmable Flash

Silicon Storage Technology, Inc

sst27sf512-70-3c-pg

1

512K (4 megabit)

CMOS EPROM

NXP Semiconductors

27c256-20n

2

Notes

Static RAM

GoldStar

gm76c88-10

1

8,192 X 8 BIT

CMOS FLASH

Winbond

w29ee011-15

1

128K (1 megabit)

EEPROM

Winbond

w27c512-70

1

64K (512 bit)

EEPROM

Winbond

w27e257-12

1

32K (256 bits)

CMOS STATIC RAM

Winbond

w2465-70ll

1

8K X 8

CMOS Flash Memory

ATMEL Corporation

at49f010-70pc

2

128K (1 megabit)

CMOS Flash Memory

ATMEL Corporation

at49f020-90pc

3

256K (2 megabit)

Graphics Color Palette

ETC

tr9c1710-50pc

1

–

Quad 2-Input NOR Gate

Motorola

sn74ls02n

1

–

8-Input POSITIVE-NAND Gates

Texas Instruments

sn74ls30n

1

–

Quadruple 2-Input POSITIVE-NAND Gates

Texas Instruments

sn74ls00n

1

–

Quadruple 2-Input XOR Gates

Texas Instruments

sn74ls86an

2

–

Manchester Encoder-Decoder

Seeq

DQ8023A

1

IEEE 802.3,Ethernet Rev 1, TxC cycle 100ns

CMOS DRAM

Hynix Semiconductor

hy534256as

8

256k x 4 bit – 70ns

CMOS DRAM

Samsung

km44c256b-7

4

256 x 4 bit – 70ns

Clock Generator – Dual Frequency Generater

Avasem

AV9194-46CN20

1

–

Above: Identified components. Part IDs are links to datasheets. If there is no link, I couldnt find the datasheet.

I have eight chips (Ok, so three are the same) which I can find no information on, any help appreciated!

I also got a stack of other eeproms, but the are all OPT (One time program) so they are useless to me. Im not binning then though, I have a project in mind. Well, 2. But an extreme voltage overload is only funny whilst you have 2 eyes.

So, if you have any datasheets that match the chips in the table above or you have any info (the data sheet would be amazing) for the chips listed as unknown, please send them to me!